Mass and Weight · Unit Converter

Convert Slug to Wey

Convert slugs to weys instantly. 1 slug = 0.1276747959 wey — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Wey to Slug converter for the reverse conversion.

Written by Sunith Babu L, Ph.D., Lead Engineer Reviewed by Dr. Ashok Kumar K, Ph.D.
Mass and Weight category 2 min read Published Last reviewed Updated

Units explained

Force / Engineering

Slug

What is a slug?

The slug is the mass that accelerates at 1 ft/s^2 under a force of one pound-force, about 14.59 kg.

Origin of the slug

Coined in the early 20th century for the British gravitational (engineering) system.

Where it is used

US and British engineering dynamics.

When and where it was developed

Introduced in the British gravitational system of units.

Avoirdupois

Wey

What is a wey?

The wey was an English bulk weight, here taken as 252 pounds (about 114.3 kg).

Origin of the wey

From Old English 'waege', a weighing or balance.

Where it is used

Obsolete English unit for wool, cheese, and salt.

When and where it was developed

Used in medieval and early-modern English trade.

Slug to Wey conversion formula

Note: this conversion uses a generally accepted modern value. Historical and regional definitions of this unit varied across times and places.

The relationship between slugs and weys:

1 slug = 0.1276747959 wey
1 wey = 7.8323994432 slug

To convert slugs to weys, multiply the value in slugs by 0.1276747959. To reverse, multiply weys by 7.8323994432.

How to use this converter

Type a value into the calculator. The result in weys updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Wey to Slug converter for the reverse direction.

Step-by-step: convert slugs to weys

  1. Write down the value in slugs (slug).
  2. Multiply that value by the factor 0.1276747959.
  3. The product is the equivalent value in weys (wey).
  4. To reverse, multiply the wey value by 7.8323994432.

Worked examples

Example 1 — Convert 1 slug to wey:
1 × 0.1276747959 = 0.1276747959 wey

Example 2 — Convert 100 slug to wey:
100 × 0.1276747959 = 12.7674795859 wey

Slug to Wey conversion table

Standard reference values for converting slugs to weys:

Slug [slug]Wey [wey]
0.010.001276748
0.10.0127674796
10.1276747959
20.2553495917
30.3830243876
40.5106991834
50.6383739793
101.2767479586
202.5534959172
303.8302438758
405.1069918344
506.3837397929
10012.7674795859
50063.8373979294
1000127.6747958588

Frequently asked questions

How many weys is 1 slug?
1 slug equals 0.1276747959 wey.
How do I convert slugs to weys?
Multiply the value in slugs by 0.1276747959 to get weys.
How do I convert weys back to slugs?
Multiply the value in weys by 7.8323994432, or use the Wey to Slug converter.
How many weys is 100 slugs?
100 slugs equals 12.7674795859 weys, because 100 × 0.1276747959 = 12.7674795859.

Convert Slug to other weight units

Show all Slug conversions
Metric / SI (18 units)
Slug to Attogram (ag) Slug to Femtogram (fg) Slug to Picogram (pg) Slug to Nanogram (ng) Slug to Microgram (µg) Slug to Milligram (mg) Slug to Centigram (cg) Slug to Decigram (dg) Slug to Gram (g) Slug to Dekagram (dag) Slug to Hectogram (hg) Slug to Kilogram (kg) Slug to Quintal (metric) (q) Slug to Metric Ton (t) Slug to Gigagram (Gg) Slug to Teragram (Tg) Slug to Petagram (Pg) Slug to Exagram (Eg)
Avoirdupois (15 units)
Slug to Grain (gr) Slug to Dram (avoirdupois) (dr) Slug to Ounce (oz) Slug to Pound (lb) Slug to Clove (clove) Slug to Stone (US) (st) Slug to Stone (UK) (st) Slug to Quarter (US) (qr) Slug to Quarter (UK) (qr) Slug to Hundredweight (US) (cwt) Slug to Hundredweight (UK) (cwt) Slug to Wey (wey) Slug to Kilopound (kip) (kip) Slug to Ton (short, US) (sh tn) Slug to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Slug to Point (1/100 carat) (pt) Slug to Carat (metric) (ct) Slug to Scruple (apothecary) (s ap) Slug to Pennyweight (dwt) Slug to Momme (mom) Slug to Mace (mace) Slug to Dram (apothecary/troy) (dr ap) Slug to Troy Ounce (oz t) Slug to Tael (tael) Slug to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Slug to Ratti (ratti) Slug to Masha (masha) Slug to Tola (tola) Slug to Chittack (Chatank) (chittack) Slug to Seer (Ser) (seer) Slug to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Slug to Electron Mass (rest) (me) Slug to MeV/c2 (MeV/c²) Slug to Muon Mass (mµ) Slug to Atomic Mass Unit (u) Slug to Proton Mass (mp) Slug to Neutron Mass (mn) Slug to Deuteron Mass (md) Slug to Carbon-12 Atom Mass (C-12) Slug to Planck Mass (mP)
Astronomical (4 units)
Slug to Lunar Mass (Moon) (M☾) Slug to Earth's Mass (M⊕) Slug to Jupiter Mass (MJ) Slug to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Slug to Lepton (Biblical Roman) (lepton) Slug to Quadrans (Biblical Roman) (quadrans) Slug to Assarion (Biblical Roman) (assarion) Slug to Gerah (Biblical Hebrew) (gerah) Slug to Drachma (Biblical Greek) (drachma) Slug to Denarius (Biblical Roman) (denarius) Slug to Bekan (Biblical Hebrew) (bekah) Slug to Didrachma (Biblical Greek) (didrachma) Slug to Shekel (Biblical Hebrew) (shekel) Slug to Tetradrachma (Biblical Greek) (tetra) Slug to Mina (Biblical Greek) (mina) Slug to Mina (Biblical Hebrew) (mina) Slug to Talent (Biblical Greek) (talent) Slug to Talent (Biblical Hebrew) (talent)
Force / Engineering (4 units)
Slug to Poundal (pdl) Slug to Ton (assay) (US) (AT) Slug to Ton (assay) (UK) (AT) Slug to Kilogram-force square second/meter (hyl)

Sources & references

Conversion factor (1 slug = 0.1276747959 wey) verified against the following authoritative sources:

Results are provided for general reference. Verify critical measurements against an authoritative standard.